#include"mystdio.h"
#include"mymath.h"

int main()
{
    int a = 3, b = 4;
    printf("%d + %d = %d\n", a, b, my_add(a, b));

    myfile* fp = my_fopen("log.txt", "w");
    if(fp == NULL) return 1;

    return 0;
}
